John Deere Battery Not Charging: Troubleshooting Tips

SPS Brand 12V 12Ah Replacement Battery for John Deere IGOR0013 Lawn and
SPS Brand 12V 12Ah Replacement Battery for John Deere IGOR0013 Lawn and from


Having a John Deere lawn tractor or garden equipment can make your outdoor maintenance tasks much easier. However, if you find that your John Deere battery is not charging, it can be frustrating. In this article, we will provide you with some troubleshooting tips to help you identify and resolve the issue.

1. Check the Battery Connections

The first step is to ensure that the battery connections are secure. Make sure the battery cables are tightly connected to the battery terminals. Loose or corroded connections can prevent the battery from charging properly.

2. Inspect the Battery

Examine the battery for any signs of damage or leakage. If you notice any cracks or leaks, it is likely that the battery needs to be replaced. Additionally, check the battery voltage using a multimeter. A fully charged battery should have a voltage reading of around 12.6 volts.

3. Clean the Battery Terminals

If you see any corrosion on the battery terminals, it is important to clean them. Disconnect the battery cables and use a mixture of baking soda and water to scrub away the corrosion. Rinse with clean water and dry the terminals before reconnecting the cables.

4. Inspect the Charging System

Next, you should inspect the charging system components. Start by checking the alternator belt for any signs of wear or damage. A loose or damaged belt can prevent the alternator from charging the battery. Additionally, examine the voltage regulator and wiring for any faults.

5. Test the Alternator Output

You can test the alternator output using a multimeter. Start the engine and set the multimeter to the DC voltage setting. Connect the positive lead to the positive battery terminal and the negative lead to the negative terminal. A functioning alternator should provide a voltage reading between 13.8 and 14.8 volts.

6. Check the Fuse

If your John Deere battery is not charging, it is possible that a blown fuse is causing the issue. Locate the fuse box, usually located under the hood or near the battery, and inspect the charging system fuse. Replace any blown fuses with the correct amperage rating.

7. Test the Voltage Regulator

If all other components are functioning properly, but the battery is still not charging, it is recommended to test the voltage regulator. You can do this using a multimeter. Connect the multimeter to the battery terminals while the engine is running. The voltage reading should remain steady around 14 volts. Any fluctuations may indicate a faulty voltage regulator.

8. Consult a Professional

If you have tried all the troubleshooting steps and are still unable to resolve the issue, it is advisable to consult a professional John Deere technician or authorized service center. They have the expertise and tools to diagnose and repair complex electrical problems.


A John Deere battery not charging can be a frustrating problem, but with these troubleshooting tips, you can identify and resolve the issue. Remember to check the battery connections, inspect the battery and charging system components, and test the alternator output, fuse, and voltage regulator. If all else fails, seek professional assistance to ensure your equipment is in optimal working condition.